AP CSP (Scratch) EOY Final

What is the primary purpose of the iterative development process?

• To complete the project in one go
• To develop the project step by step
• To debug the project after completion
• To test the project on different platforms
• None of the above

Answer explanation

The iterative development process involves developing a project step by step, allowing for continuous improvement and feedback.

Which of the following best describes an algorithm?

• A set of instructions for solving a problem
• A type of programming language
• A software application
• A computer hardware component
• None of the above

Answer explanation

An algorithm is a set of instructions designed to perform a specific task or solve a problem.

What is the purpose of using variables in programming?

• To store data that can change
• To perform calculations
• To display information on the screen
• To create loops
• None of the above

Answer explanation

Variables are used to store data that can change during program execution.

What is Scratch primarily used for in programming education?

• To write complex algorithms
• To learn block-based programming
• To create databases
• To design web pages
• None of the above

Answer explanation

Scratch is a visual programming language designed to teach block-based programming concepts.

What is pseudocode used for?

• Writing actual code
• Explaining algorithms in plain language
• Debugging programs
• Designing user interfaces
• None of the above

Answer explanation

Pseudocode is a way to describe algorithms using plain language before translating them into actual code.

What does the term 'binary' refer to in computing?

• A programming language
• A type of network
• A number system using 0s and 1s
• A computer virus
• None of the above

Answer explanation

Binary is a base-2 number system used in computing, consisting of only 0s and 1s.

Which Scratch block is used to start a script?

• Repeat
• If
• Forever
• When green flag clicked
• None of the above

Answer explanation

The 'When green flag clicked' block starts a script when the green flag is clicked in Scratch.

What is the function of the Scratch block 'repeat 10'?

• To repeat a set of instructions 10 times
• To repeat a set of instructions forever
• To stop the script
• To wait for 10 seconds
• None of the above

Answer explanation

The 'repeat 10' block repeats the enclosed instructions 10 times.

Which block in Scratch is used to move a sprite 10 steps?

• Move 10 steps
• Go to x: 10 y: 10
• Change x by 10
• Glide to x: 10 y: 10
• None of the above

Answer explanation

The 'move 10 steps' block moves the sprite 10 steps in the direction it is facing.

What does the Scratch block 'if on edge, bounce' do?

• Bounces the sprite off the edge
• Stops the sprite at the edge
• Changes the sprite's direction
• Deletes the sprite
• None of the above

Answer explanation

The 'if on edge, bounce' block makes the sprite bounce back when it touches the edge of the stage.